Magic-angle helical trilayer graphene

T Devakul, PJ Ledwith, LQ Xia, A Uri… - Science …, 2023 - science.org
We propose magic-angle helical trilayer graphene (HTG), a helical structure featuring
identical rotation angles between three consecutive layers of graphene, as a unique and …

Fractional Chern insulators versus nonmagnetic states in twisted bilayer

J Yu, J Herzog-Arbeitman, M Wang, O Vafek… - Physical Review B, 2024 - APS
Fractionally filled Chern bands with strong interactions may give rise to fractional Chern
insulator (FCI) states, the zero-field analog of the fractional quantum Hall effect. Recent …

A microscopic perspective on moiré materials

KP Nuckolls, A Yazdani - Nature Reviews Materials, 2024 - nature.com
Contemporary quantum materials research is guided by themes of topology and electronic
correlations. A confluence of these two themes is engineered in moiré materials, an …

Imaging inter-valley coherent order in magic-angle twisted trilayer graphene

H Kim, Y Choi, É Lantagne-Hurtubise, C Lewandowski… - Nature, 2023 - nature.com
Magic-angle twisted trilayer graphene (MATTG) exhibits a range of strongly correlated
electronic phases that spontaneously break its underlying symmetries,. Here we investigate …

[HTML][HTML] Imaging quantum oscillations and millitesla pseudomagnetic fields in graphene

H Zhou, N Auerbach, M Uzan, Y Zhou, N Banu, W Zhi… - Nature, 2023 - nature.com
The exceptional control of the electronic energy bands in atomically thin quantum materials
has led to the discovery of several emergent phenomena. However, at present there is no …

Nodal band-off-diagonal superconductivity in twisted graphene superlattices

M Christos, S Sachdev, MS Scheurer - Nature Communications, 2023 - nature.com
The superconducting state and mechanism are among the least understood phenomena in
twisted graphene systems. Recent tunneling experiments indicate a transition between …

Dynamical correlations and order in magic-angle twisted bilayer graphene

G Rai, L Crippa, D Călugăru, H Hu, F Paoletti… - Physical Review X, 2024 - APS
The interplay of dynamical correlations and electronic ordering is pivotal in shaping phase
diagrams of correlated quantum materials. In magic-angle twisted bilayer graphene …

Gate-defined topological Josephson junctions in Bernal bilayer graphene

YM Xie, É Lantagne-Hurtubise, AF Young… - Physical Review Letters, 2023 - APS
Recent experiments on Bernal bilayer graphene (BLG) deposited on monolayer WSe 2
revealed robust, ultraclean superconductivity coexisting with sizable induced spin-orbit …

Twisted bilayer graphene revisited: minimal two-band model for low-energy bands

D Bennett, DT Larson, L Sharma, S Carr, E Kaxiras - Physical Review B, 2024 - APS
An accurate description of the low-energy electronic bands in twisted bilayer graphene
(tBLG) is of great interest due to their relation to correlated electron phases such as …

Electron-phonon coupling and competing kekulé orders in twisted bilayer graphene

YH Kwan, G Wagner, N Bultinck, SH Simon, E Berg… - Physical Review B, 2024 - APS
Recent scanning tunneling microscopy experiments in twisted bilayer [KP Nuckolls et al.,
Nature (London) 620, 525 (2023) 0028-0836 10.1038/s41586-023-06226-x] and trilayer [H …